Insecticidal activity and receptor binding properties of Bacillus thuringiensis toxins to yellow and striped rice stem borers (Sciropophaga incertulas and Chilo suppresalis, respectively) were investigated. Yellow stem borer (YSB) was susceptible to Cry1Aa, Cry1Ac, Cry2A, and Cry1C toxins with similar toxicities. To striped stem borer (SSB), Cry1Ac, Cry2A, and Cry1C were more toxic than Cry1Aa ...

A storage protein gene, CsSP2, was eloned and sequenced from the rice stem borer, Chilo st4npi'essalis. Analysis of the cDNA scquence revealed an open reading frame of2,118bp in length which encodcs an arylphorin-like protein with a calculated molccular weight of 83.7 kDa. The cxpression level of CsSP2 was higher in non-diapausing Iarvae than in diapausing larvae at 20"C. When diapausing larvae...

The present investigation entitled Evaluation of the efficacy some insecticides against rice yellow stem borer, Scirpophaga incertulas (Walker) was undertaken at MAE Farm, Regional Agriculture Research Station, Karjat (M.S.) during Kharif 2018. overall mean borer infestation (dead heart) varied from 1.23 – 7.50 per cent. T5 (Flubendiamide 20 WG @ 0.005%) recorded minimum (1.23%) and which signi...

Objective: In this study the efficacy of two agent of this biological control agent of corn stem borer in corn fields compared with common synthetic insecticides Endosolfan to find a suitable alternative for chemical control of pests in corn fields. Methods: In order to evaluate the efficiency of biocontrol agents of corn stem borer ,Ostrinia nubilalis, experiment was conducted in a ra...

Objective: In this study the efficacy of two agent of this biological control agent of corn stem borer in corn fields compared with common synthetic insecticides Endosolfan to find a suitable alternative for chemical control of pests in corn fields. Methods: In order to evaluate the efficiency of biocontrol agents of corn stem borer ,Ostrinia nubilalis, experiment was conducted in a ra...

rice is the world's most important food crop. to decrease the damage of  rice pests, development of insect pest management strategies in rice is necessary. biennial results for determination of a suitable method to control striped stem borer in rice showed that integration of two methods of control (biological and mechanical) is a feasible effort to reduce stem borer infestation. to assure...

Yellow stem borer, Scirpophaga incertulas (Walker) is monophagous insect pest causing serious damage to rice growers of plain regions Nepal. This study was done evaluate the host preference yellow borer various genotypes rice. The research design employed Randomized Complete Block Design (RCBD) with seven treatments and three replications in kharif season 2021. Rice varieties selected were Sabi...

Investigations were carried out at Main Pearl Millet Research Station, Junagadh Agricultural University, Jamnagar (Gujarat) during kharif 2021 revealed that shoot fly, Atherigona soccata, stem borer, Chilo partellus, and ear head worm, Helicoverpa armigera the major insect-pests in pearl millet. Significant correlation was found of borerand with different weather parameters. There a considerabl...

Abstract A field experiment was conducted to assess the efficacy of pre-mixture pheromone formulation containing ethyl-4-methyl octanoate and 4-methyl-5-nonanol against rhinoceros beetle weevil stem borer. Four doses pheromone, i.e., 1 mL/2 ha, mL/3 mL/4 mL/8 were tested following a randomized block design with five replications. mock treatment using mL pure water used as comparison. The result...